Reports early Monday from China suggest that a mass disturbance or riots may have broken out at a Foxconn factory in the Chinese city of Taiyuan.

It is still unclear what exactly happened, but posts[2] on China’s popular twitter-like service, Weibo, from users in the area show photographs and video of large numbers of police in and around the factory – many in riot gear – blocking off throngs of people.

Other photos show debris strewn around the Foxconn compound and in one case, an overturned guard tower.

According to popular tech blog engadget[3], the disturbance kicked off[4] after Foxconn security guards allegedly hit a worker around 10 p.m. on Sunday.